php determines whether it is a date

#checkdate() function is used to verify Gregorian date. (Recommended learning: PHP video tutorial)

bool checkdate ( int $month , int $day , int $year )

If the given date is valid, return TRUE, otherwise return FALSE, check the legality of the date composed of parameters .

Date is considered valid if:

year has a value from 1 to 32767

month has a value from 1 The value to 12

Day is within the range of the number of days a given month should have, and leap years have been taken into account.

checkdate() Example

<?php
var_dump(checkdate(12, 31, 2000));
var_dump(checkdate(2, 29, 2001));
?>

The above routine will output:

bool(true)
bool(false)

The string conversion is as follows: Can:

$str='2015-01-12';
list($y,$m,$d)=explode(‘-’,$str);
var_dump(checkdate($m,$d,$y));

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